For most of us, Thanksgiving is a time to disregard normal dietary restraint in the company of extended family members that one rarely sees. For some enterprising families, however, Thanksgiving quickly devolves from a Rockwellian family gathering to a Costanza-style airing of grievances. So, in the holiday spirit, we offer this list of the top ten questions not to ask at Thanksgiving dinner. If you have trouble distinguishing between the board room and the dining room, this list is for you.